超大型 波激振动和砰击振动模型试验研究.pdf

超大型 波激振动和砰击振动模型试验研究丁军 1, 汪雪良 1, 胡嘉骏 1, 刘日明 2(1 中国船舶科学研究中心, 江苏无锡 214082; 2 中国船级社, 北京 100007)摘要: 船舶的波激振动和砰击振动对船舶结构的安全性有较大影响。文章以一艘超大型 为研究对象,通过变截面梁分段模型试验方法对船舶在规则波和不规则波中波激振动和砰击振动响应进行了比较分析,介绍了船模波浪载荷试验中模型的设计原则,通过静水试验得到了船体梁垂向振动频率特性、振动阻尼和静水兴波弯矩等参数,通过规则波和不规则波试验分析了波高、波浪周期和装载状态等因素对波激振动和砰击振动的影响。该文的研究结果对大型船舶的结构设计具有一定的指导意义。关键词: 油船; 波激振动; 砰击振动; 模型试验中图分类号: 文献标识码: A doi: .1007- investigations of springing andslamming responses of a ultra-DING Jun1, WANG Xue-liang 1, HU Jia-jun1, LIU Ri-ming 2(1 China Ship Scientific Research Center, Wuxi 214082, China;2 China Classification Society, Beijing 100007, China)Abstract: The springing and slamming have a great influence on the safety of ship structures. Based on themethod of variable cross-section beam segmented model tests, the analysis of springing and slamming re鄄sponses for a ultra- in regular and irregular waves is presented. The design principle of the segmentedmodel is introduced, the vertical vibration frequency of hull girder, damping ratios and wave bending mo鄄ment in still water are obtained from the still water tests, and the influence of wave height, wave period andloading condition on springing and slamming responses is analyzed in the regular and irregular waves. Theresearch results in this paper have a certain guiding significance for the design of large ship words: (very l